Unpopular opinion, but part of the problem is that stupid people are more likely to have kids, and especially many kids. Stupid people become stupid parents.
Associations of candidate genes with psychological traits and other traits studied in the social sciences should be viewed as tentative until they have been replicated in multiple large samples. Failing to exercise such caution may hamper scientific progress by allowing for the proliferation of potentially false results [… which may lead to] incorrect perceptions about the state of knowledge in the field, especially…
your snopes article is about inheriting from mother alone, not parents
There IS also a significant difference between births based on income
https://www.statista.com/statistics/241530/birth-rate-by-fam...
65 births per 1000 women vs 43 births per 1000 women
[1] https://www.nytimes.com/2018/07/23/science/genes-education.h...